admin/Order/OrderView.aspx.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using SystemOrder;
using System.IO;

public partial class admin_Order_OrderView : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            btdelete.Attributes["onclick"] = "javascript:return confirm('是否确定删除？')";
            string a=  Request.QueryString["ordernum"].ToString();
            BindData(a);
            BindDatacontent(a);
        }

    }
    //文件下载
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        if (Session["filename"] != "")
        {
            string filename = Session["filename"].ToString();  //客户端保存的文件名
            string serverpath = Server.MapPath(@"~/admin/file/") + filename;    //路径

            //以字符流的形式下载文件
            if (filename != "")
            {
                FileStream fs = new FileStream(serverpath, FileMode.Open);
                byte[] bytes = new byte[(int)fs.Length];
                fs.Read(bytes, 0, bytes.Length);
                fs.Close();
                Response.ContentType = "application/octet-stream";

                //通知浏览器下载文件而不是打开
                Response.AddHeader("Content-Disposition", "attachment;  filename=" + HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8));
                Response.BinaryWrite(bytes);
                Response.Flush();
                Response.End();
            }
            else
            {
                MessageBox.Show(Page, "该用户没有上传文件！");
            }
        }
        else
        {
            MessageBox.Show(Page, "该用户没有上传文件！");
        }
        
    }